CN117400500B - Injection control system of double-color-cleaning injection molding machine - Google Patents
Injection control system of double-color-cleaning injection molding machine Download PDFInfo
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- CN117400500B CN117400500B CN202311526509.5A CN202311526509A CN117400500B CN 117400500 B CN117400500 B CN 117400500B CN 202311526509 A CN202311526509 A CN 202311526509A CN 117400500 B CN117400500 B CN 117400500B
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- 238000002347 injection Methods 0.000 title claims abstract description 398
- 239000007924 injection Substances 0.000 title claims abstract description 398
- 238000001746 injection moulding Methods 0.000 title claims abstract description 31
- 238000004140 cleaning Methods 0.000 title claims abstract description 7
- 239000003292 glue Substances 0.000 claims abstract description 122
- 230000001360 synchronised effect Effects 0.000 claims abstract description 33
- 238000001514 detection method Methods 0.000 claims abstract description 17
- 238000004891 communication Methods 0.000 claims abstract description 8
- 238000000034 method Methods 0.000 abstract description 38
- 230000000694 effects Effects 0.000 abstract description 13
- 238000004519 manufacturing process Methods 0.000 description 4
- 239000003086 colorant Substances 0.000 description 2
- 238000001816 cooling Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000011229 interlayer Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 238000003672 processing method Methods 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000007711 solidification Methods 0.000 description 1
- 230000008023 solidification Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/17—Component parts, details or accessories; Auxiliary operations
- B29C45/76—Measuring, controlling or regulating
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C45/00—Injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould; Apparatus therefor
- B29C45/16—Making multilayered or multicoloured articles
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76498—Pressure
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76494—Controlled parameter
- B29C2945/76595—Velocity
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
- B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
- B29C2945/00—Indexing scheme relating to injection moulding, i.e. forcing the required volume of moulding material through a nozzle into a closed mould
- B29C2945/76—Measuring, controlling or regulating
- B29C2945/76822—Phase or stage of control
- B29C2945/76859—Injection
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Mechanical Engineering (AREA)
- Injection Moulding Of Plastics Or The Like (AREA)
Abstract
The invention relates to an injection control system of a double-color-cleaning injection molding machine, which belongs to the technical field of injection molding machine injection and comprises a control terminal, and a needle valve control module, a main injection platform control module and an auxiliary injection platform control module which are respectively in communication connection with the control terminal, wherein the needle valve control module is used for controlling the opening and closing of a needle valve of a mold, and the main injection platform control module is used for controlling the opening and closing of a glue inlet of a main injection platform; the injection molding machine further comprises an injection quantity detection module, the needle valve control module is firstly enabled to control the opening of the mold needle valve through the control terminal, then the injection quantity of the glue inlet of the main injection table is detected through the injection quantity detection module and injection quantity data are uploaded to the control terminal, the control terminal sends an instruction to the auxiliary injection table control module according to the injection quantity data, the auxiliary injection table control module controls the opening or the opening of the glue inlet of the auxiliary injection table, and the problem that the injection molding accuracy and the injection molding effect of a product are to be improved only by means of the process of synchronous injection and sequential injection of the double injection tables during injection molding is solved.
Description
Technical Field
The invention belongs to the technical field of injection molding machines, and particularly relates to an injection control system of a double-color-cleaning injection molding machine.
Background
Injection molding technology is a processing method for injecting molten plastic into a mold through an injection molding machine, and forming a plastic product with a required shape after cooling and solidification; it is widely used in the production of various plastic products such as plastic parts, toys, electrical equipment housings, furniture, etc., and an injection molding machine is an apparatus for injecting molten plastic into a mold and cooling and solidifying the molten plastic in the mold to form a desired plastic product, which is one of the most commonly used apparatuses in the plastic processing industry.
For example, the utility model patent with the application number of CN202121166055.1 discloses a shell encapsulation process molding device, which utilizes the characteristic that a double injection table injection molding machine can inject glue at the same time by using a double injection table, and is matched with a double cavity mold, so that the procedures of producing inserts and finished products can be simultaneously carried out, the production time is shortened, the production efficiency is improved, the first injection table and the second injection table are mutually independent injection tables, the actions of the first injection table and the second injection table are not mutually influenced, and the first injection table and the second injection table can work in time sequence, can synchronously work at the same time, even only one of the first injection table and the second injection table can work to meet the production process of different products.
However, the above patent still has some problems during use: along with the increasing number of injection products, the requirement on the injection effect of the products is also higher, when the products with complex injection structures are injected, the injection processes from one end of the products to the other end are mostly different, and the more the injection processes can be completed from one end of the products to the other end of the injection molding machine during injection molding, the more accurate the injection of the products are, the better the effect is, and the injection control system of the double-shot injection molding machine greatly improves the injection effect by only depending on the synchronous injection and sequential injection processes of the double-shot table during injection molding in the prior art.
Disclosure of Invention
The invention provides an injection control system of a double-color-cleaning injection molding machine, which solves the problem that in the prior art, the injection precision and injection effect of a product are improved only by means of a synchronous injection and sequential injection process of a double-injection table.
The aim of the invention can be achieved by the following technical scheme:
The injection control system of the double-color-clearing injection molding machine comprises a control terminal, and a needle valve control module, a main injection table control module and an auxiliary injection table control module which are respectively in communication connection with the control terminal, wherein the needle valve control module is used for controlling the opening and closing of a mold needle valve, and the main injection table control module is used for controlling the opening and closing of a main injection table glue inlet; the injection quantity detection module is used for detecting the injection quantity of the glue inlet of the main injection platform and uploading the injection quantity data to the control terminal, and the control terminal sends an instruction to the auxiliary injection platform control module according to the injection quantity data so that the auxiliary injection platform control module controls the opening or the opening size of the glue inlet of the auxiliary injection platform.
As a further scheme of the invention, the needle valve control module and the main injection platform control module respectively control the synchronous opening of the needle valve of the mould and the glue inlet of the main injection platform and feed back an opening signal to the control terminal, and the control terminal receives the opening signal and instructs the auxiliary injection platform control module to control the glue inlet of the auxiliary injection platform to be opened.
As a further scheme of the invention, the needle valve control module and the main injection platform control module respectively control the synchronous opening of the needle valve of the mould and the glue inlet of the main injection platform and feed back an opening signal to the control terminal; the control terminal is internally preset with synchronous starting node parameters, and the control terminal sends an instruction to the auxiliary injection platform control module according to the starting signal and the synchronous starting node parameters so that the auxiliary injection platform control module controls the auxiliary injection platform glue inlet to be started.
As a further scheme of the invention, the control terminal is also preset with a synchronous stop node parameter, and the control terminal sends an instruction to the auxiliary injection platform control module according to the synchronous stop node parameter, so that the auxiliary injection platform control module controls the auxiliary injection platform glue inlet to be closed.
As a further scheme of the invention, the needle valve control module and the main injection platform control module respectively control the synchronous opening of the needle valve of the mould and the glue inlet of the main injection platform and feed back an opening signal to the control terminal; the control terminal is internally preset with a sequence starting node parameter, and the control terminal sends an instruction to the auxiliary injection platform control module according to the starting signal and the sequence starting node parameter so that the auxiliary injection platform control module controls the auxiliary injection platform glue inlet to be started; and the control terminal synchronously sends an instruction to the main injection platform control module, so that the main injection platform control module controls the main injection platform glue inlet to be closed.
As a further scheme of the invention, a sequence stop node parameter is preset in the control terminal, and the control terminal sends an instruction to the auxiliary injection platform control module according to the sequence stop node parameter, so that the auxiliary injection platform control module controls the auxiliary injection platform glue inlet to be closed; and the control terminal synchronously sends an instruction to the main injection platform control module, so that the main injection platform control module controls the main injection platform glue inlet to be opened.
As a further scheme of the invention, a gradual change starting node parameter and a gradual change injection quantity adjusting parameter are also preset in the control terminal, and the control terminal sends an instruction to the auxiliary injection platform control module according to the gradual change starting node parameter and the gradual change injection quantity adjusting parameter, so that the auxiliary injection platform control module controls the opening of the auxiliary injection platform glue inlet to be gradually reduced or enlarged.
As a further scheme of the invention, a gradual change starting node parameter and a gradual change injection quantity adjusting parameter are also preset in the control terminal, and the control terminal sends an instruction to the auxiliary injection platform control module according to the gradual change starting node parameter and the gradual change injection quantity adjusting parameter, so that the auxiliary injection platform control module controls the opening of the auxiliary injection platform glue inlet to be gradually reduced or enlarged.
As a further scheme of the invention, the control terminal is also preset with glue port allowance detection parameters for detecting the glue port allowance of the auxiliary injection platform and the main injection platform, and the control terminal respectively sends instructions to the main injection platform control module and the auxiliary injection platform control module according to the glue port allowance detection parameters so that the main injection platform control module and the auxiliary injection platform control module respectively control the glue port of the main injection platform and the glue port of the auxiliary injection platform to be closed.
As a further scheme of the invention, the glue inlet of the main injection table and the glue inlet of the auxiliary injection table are in communication connection with a glue leakage detector.
The beneficial effects of the invention are as follows:
The control terminal firstly enables the needle valve control module to control the opening of the needle valve of the mould, then enables the main injection platform control module to control the main injection platform glue inlet to be opened, then detects the injection quantity of the main injection platform glue inlet through the injection quantity detection module and uploads the injection quantity data to the control terminal, and the control terminal sends an instruction to the auxiliary injection platform control module according to the injection quantity data, so that the auxiliary injection platform control module controls the opening or the opening size of the auxiliary injection platform glue inlet, the main injection platform and the auxiliary injection platform can complete segmented, synchronous, sequential and gradual injection, more accurate injection is achieved through the addition of various processes, the better effect is achieved, and the problem that in the prior art, the injection precision degree and the injection effect of products are to be improved only by the process of synchronous injection and sequential injection of the double injection platforms is solved.
Drawings
The present invention is further described below with reference to the accompanying drawings for the convenience of understanding by those skilled in the art.
FIG. 1 is a control schematic diagram of a control terminal according to the present invention;
FIG. 2 is a schematic diagram of the control of the main stage and the auxiliary stage according to the present invention.
Legend: 1. a control terminal; 11. a needle valve control module; 12. a main shooting table control module; 13. an auxiliary injection station control module; 14. an injection quantity detection module; A. a main shooting table; B. an auxiliary injection table; C. and a mold needle valve.
Detailed Description
In order to further describe the technical means and effects of the present invention for achieving the intended purpose, the following detailed description will refer to the specific embodiments, structures, features and effects according to the present invention with reference to the accompanying drawings and preferred embodiments.
Referring to fig. 1-2, an injection control system of a double-color injection molding machine comprises a control terminal 1, a needle valve control module 11, a main injection table control module 12 and an auxiliary injection table control module 13 which are respectively in communication connection with the control terminal 1, wherein the needle valve control module 11 is used for controlling the switch of a needle valve C of a mold, the main injection table control module 12 is used for controlling the switch of a glue inlet of a main injection table a, the injection control system further comprises an injection amount detection module 14, the injection amount detection module 14 is used for detecting the injection amount of the glue inlet of the main injection table a and uploading injection amount data to the control terminal 1, the injection amount detection module 14 specifically comprises an injection amount detector and a sensor, the injection amount detector detects the injection amount of the glue inlet of the main injection table a, then the injection amount detector feeds back the data to the sensor, the sensor transmits signals to the control terminal 1, the sensor only transmits a signal, so that a common signal sensor is used, and finally the control terminal 1 sends an instruction to the auxiliary injection table control module 13 according to injection quantity data, so that the auxiliary injection table control module 13 controls the opening and closing of the glue inlet of the auxiliary injection table B, the injection quantity data are standard, the standard is determined according to the type of injection products, the injection quantity data can be according to the standard, the auxiliary injection table control module 13 finally controls the opening and closing of the glue inlet of the auxiliary injection table, the opening and closing of the glue inlet of the auxiliary injection table are firstly opened through the mould needle valve C and the glue inlet of the main injection table, and the opening and closing of the glue inlet of the auxiliary injection table are different, so that the sectional, synchronous, sequential and gradual injection of the main injection table A and the auxiliary injection table B are realized.
At present, as injection products are more and more, the requirement on the injection effect of the products is higher and higher, when the same product is injected, in order to enable the product to be attractive or meet the requirement of the product, the injection process from one end of the product to the other end is different, the more the injection process of the injection molding machine can be completed from one end of the product to the other end, the more accurate the injection process is, the better the effect is, but the injection process of the injection process in the prior art only depends on the synchronous injection and sequential injection of the double injection platforms, although the injection process of partial products can be met, the injection precision degree and the injection effect of the product are required to be improved for the product with complex structure, in order to solve the problem, in this embodiment, the needle valve control module 11 is firstly controlled by the control terminal 1 to open the needle valve C, then the main injection platform control module 12 is controlled by the main injection platform A glue inlet to be opened, then the injection quantity detection module is used for detecting the injection quantity of the main injection platform A glue inlet and transmitting the injection quantity data to the control terminal 1, the control terminal 1 is controlled by the auxiliary injection quantity data, the injection terminal 1 sends the injection command to the auxiliary injection platform control module 13 according to the injection quantity data, the injection process is more accurate the injection process is realized by the auxiliary injection platform control module, the injection process is controlled by the control module 13, the injection process is more accurate the injection process is controlled by the injection process B, the injection process is more accurate and the injection process is improved, the injection process is more than the injection process is more accurate and the injection process is controlled by the injection process stage control platform B injection process, and the injection process is more than the injection process has the injection precision control stage is more improved.
Because the opening and closing sequence of the mold needle valve C and the glue inlet of the main injection table A and the glue inlet of the auxiliary injection table B is different, for easier understanding, the opening and closing sequence of the mold needle valve C and the glue inlet of the main injection table A and the glue inlet of the auxiliary injection table B is divided into the following steps:
s0: the mould needle valve C is closed, and the glue inlets of the main injection table A and the auxiliary injection table B are closed;
s1: the mold needle valve C is opened until the glue inlet of the main injection table A is completely opened, and the glue inlet of the auxiliary injection table B is closed;
s2: the mold needle valve C is opened until the glue inlet of the main injection table A and the auxiliary injection table B is completely opened;
S3: the mould needle valve C is opened until the glue inlet of the main injection table A is completely opened, and the glue inlet of the auxiliary injection table B is positioned at a gradual change position 1 (the gradual change position 1 refers to the position at which gradual change starts, and the position can be adjusted by a computer according to the actual process);
S4: the mould needle valve C is opened until the glue inlet of the main injection platform A is completely opened, and the glue inlet of the auxiliary injection platform B is positioned at a gradual change position 2 (the gradual change position 2 refers to the position at which gradual change is finished, and the position can be adjusted by a computer according to the actual process).
It is worth to say that, in actual use, the required injection molding process is different for different products, and when the products are injected, synchronous injection is adopted, but two different conditions are adopted for synchronous injection, and the products injected under different conditions are different, wherein the first condition is that the mould needle valve C and the main injection table glue inlet are synchronously opened first, the main injection table A and the auxiliary injection table B realize synchronous injection, the second condition is that the mould needle valve C and the main injection table A glue inlet are synchronously opened first, and after the main injection table A moves for a certain distance, the auxiliary injection table B is opened at the moment, and the main injection table A and the auxiliary injection table B realize synchronous injection; the two cases are different in the injection molded products; for the first situation, in an embodiment, the needle valve control module 11 and the main injection platform control module 12 respectively control the mold needle valve C and the main injection platform a to synchronously open and feed back an opening signal to the control terminal 1, the control terminal 1 receives the opening signal and instructs the auxiliary injection platform control module 13 to control the auxiliary injection platform B to open the glue inlet, so that synchronous injection molding of the product under the general condition can be realized; for the second case, in another embodiment, the needle valve control module 11 and the main injection platform control module 12 respectively control the mold needle valve C and the main injection platform glue inlet to be synchronously opened and feed back an opening signal to the control terminal 1; the control terminal 1 is internally preset with synchronous starting node parameters, and the control terminal 1 sends an instruction to the auxiliary injection station control module 13 according to the starting signal and the synchronous starting node parameters, so that the auxiliary injection station control module 13 controls the auxiliary injection station B to start a glue inlet; in order to solve the problem that when the injection of the main injection table a and the auxiliary injection table B is stopped and the injection of the injection molded product is melted, cooled, solidified and shrunk, a pressure cannot be maintained, and dents are generated, in one embodiment, a synchronization stop node parameter is preset in the control terminal 1, the control terminal 1 sends an instruction to the auxiliary injection table control module 13 according to the synchronization stop node parameter, so that the auxiliary injection table control module 13 controls the glue inlet of the auxiliary injection table B to be closed, the synchronization stop node parameter aims at enabling the glue inlet of the auxiliary injection table B to be closed firstly after the main injection table a and the auxiliary injection table B are synchronously injected, and enabling the glue inlet of the main injection table a not to be closed firstly, so that when the injection molded product is melted, cooled, solidified and shrunk, a pressure is maintained, and melted is continuously injected to fill the shrunk space, and the generation of dents is reduced or avoided; in the above process, the specific injection procedure is as follows: firstly, S1-A (main injection table A is injected to a first setting position), S2-A and B (main injection table BB and auxiliary injection table BB are synchronously injected to a second setting position), S1-A (main injection table A is pressurized), S0 are carried out, wherein the first setting position is the node parameter position, the position is set according to the actual requirement of a product, the second setting position is also set according to the actual requirement of the product, the product is divided into three parts, namely a front part, a middle part and a rear part, and the middle part is a part between the first setting position and the second setting position.
Further, when two of the front, middle and rear three parts of the product need to be injected, if the injection molding machine cannot complete only synchronous injection, in one embodiment, the needle valve control module 11 and the main injection platform control module 12 control the mold needle valve C and the main injection platform a to synchronously open and feed back an opening signal to the control terminal 1 respectively; the control terminal 1 is internally preset with sequential starting node parameters, and the control terminal 1 sends an instruction to the auxiliary injection station control module 13 according to the starting signal and the sequential starting node parameters, so that the auxiliary injection station control module 13 controls the auxiliary injection station B to start a glue inlet; and the control terminal 1 synchronously sends an instruction to the main injection platform control module 12, so that the main injection platform control module 12 controls the main injection platform glue inlet to be closed, and in the process, the specific injection flow of sequential injection is as follows: s1→a (main injection station a injecting the first set position) →s2→b (auxiliary injection station B injecting the second set position) →s1→a (main injection station a maintaining pressure) →s0;
In order to solve the problem, in one embodiment, a sequential stop node parameter is preset in the control terminal 1, and the control terminal 1 sends an instruction to the auxiliary injection platform control module 13 according to the sequential stop node parameter to enable the auxiliary injection platform control module 13 to control the closing of the glue inlet of the auxiliary injection platform B; and the control terminal 1 synchronously sends an instruction to the main injection station control module 12, so that the main injection station control module 12 controls the main injection station A glue inlet to be opened, and the problems of deformation and defect of injection molding parts and easy fusing and bubble generation caused by overlarge pressure and concentrated stress in the injection process are solved through the sectional action, and the specific flow of sectional injection is as follows: s1→a (main injection stage a injected into the first setting position) →s2→b (auxiliary injection stage B injected into the second setting position) →s1→a (main injection stage a pressure maintaining) →s0, the first setting position and the second setting position appearing the second time in the flow are not one point, and the two positions are separated by one end distance, but the selected modes are the same at each sequential injection, and the first second setting position and the subsequent second setting position are also different, and the selected modes are the same.
Furthermore, the quality of the product is not only pursued by the current user, but also the aesthetic property is required to be considered, so that the aesthetic property of the injection product is required to be ensured while the injection quality is ensured, gradual change injection is required to be added in the process of synchronous injection, but when gradual change injection is performed, the problem that gradual change injection amount is too much or too little and the problem that gradual change position is not easy to determine easily occur is easily solved, in order to solve the problem, in one embodiment, a gradual change starting node parameter and a gradual change injection amount adjusting parameter are preset in the control terminal 1, the control terminal 1 sends an instruction to the auxiliary injection station control module 13 according to the gradual change starting node parameter and the gradual change injection amount adjusting parameter, so that the auxiliary injection station control module 13 controls the opening of the auxiliary injection station glue inlet to be gradually reduced or enlarged, and by introducing the gradual change starting node parameter and the gradual change injection amount adjusting parameter, the gradual change position and the gradual change injection amount can be strictly controlled by controlling the terminal 1, so that the problem that the gradual change injection amount is too much or too little and the gradual change position is not easy to be determined easily occurs is solved, and the synchronous gradual change injection is specifically: s1→a (main injection stage a injection setting position) →s2→ A, B (main and auxiliary injection stages are synchronously injected to the setting position) →s3→ A, B to a gradation start position (A, B, C is synchronously operated to the setting position) →s4→ A, B to a gradation end position (A, B, C is synchronously operated to the setting position) →s1→a (main injection stage a pressure maintaining) →s0, gradation injection is performed when main injection stage a and auxiliary injection stage B are synchronously injected according to this flow.
In an embodiment, a gradual change starting node parameter and a gradual change injection amount adjusting parameter are preset in the control terminal 1, the control terminal 1 sends an instruction to the auxiliary injection platform control module 13 according to the gradual change starting node parameter and the gradual change injection amount adjusting parameter, so that the auxiliary injection platform control module 13 controls the opening of the glue inlet of the auxiliary injection platform B to be gradually reduced or enlarged, and a specific sequential gradual change injection flow is as follows: s1→a (main injection stage a injection setting position) s2→b (auxiliary injection stage B injection to setting position) →s3, B to gradation start position (B, C synchronized action to setting position) →s4→b to gradation end position (B, C synchronized action to setting position) →s1→a (main injection stage a pressure maintaining) →s0, gradation injection is performed when sequential injection of main injection stage a and auxiliary injection stage B is completed according to this flow.
The main injection platform A and the auxiliary injection platform B are both of a single injection oil cylinder structure, and the single injection oil cylinder is compact in structure, small in size and convenient to install and use due to the fact that the price is relatively low, the power is all of a servo system, the servo system is in communication connection with the control terminal 1, the servo system can realize closed-loop control of pressure, speed and position, injection can be carried out in position segmentation according to different pressures and speeds, the two injection platforms adopt materials with two colors, and products with interlayer and gradual colors can be produced through different injection processes.
It should be further described that, when the glue inlet of the main injection platform a and the auxiliary injection platform B injects the glue of the product, the glue inlet of the main injection platform a and the auxiliary injection platform B sprays the glue of the product, and some glue is adhered to the glue inlet of the main injection platform due to rebound of the product, so that the glue quantity of the pre-set glue sprayed to the product is different from the glue quantity of the glue actually sprayed to the product, which affects injection precision and injection effect, in order to solve the problem, in one embodiment, the glue inlet allowance detection parameter for detecting the glue inlet allowance of the auxiliary injection platform and the main injection platform is preset in the control terminal 1, the control terminal 1 sends instructions to the main injection platform control module 12 and the auxiliary injection platform control module 13 respectively according to the glue inlet allowance detection parameter, so that the glue inlet of the main injection platform 12 and the auxiliary injection platform is closed respectively, and the glue inlet allowance is normally subtracted by the total glue quantity, but the glue allowance is the glue quantity injected from the glue inlet is normally subtracted, and the glue quantity is slightly subtracted from the glue inlet normally.
In order to avoid excessive glue adhered to the outside of the glue inlet and cause excessive difference of glue inlet allowance detection parameters, in an embodiment, the glue inlet of the main injection table and the outside communication of the glue inlet of the auxiliary injection table are connected with a glue leakage detector, the glue leakage detector is externally connected with an alarm, the glue adhered to the outside of the glue inlet is within a certain value, the glue leakage detector cannot give an alarm, and exceeds a certain value, the glue is adhered to the excessive glue inlet, the glue leakage detector can give an alarm, and at the moment, the injection molding machine is required to be stopped for cleaning, so that the injection molding accuracy is prevented from being reduced.
The present invention is not limited to the above embodiments, but is capable of modification and variation in detail, and other modifications and variations can be made by those skilled in the art without departing from the scope of the present invention.
Claims (4)
1. The injection control system of the double-color-clearing injection molding machine is characterized by comprising a control terminal, and a needle valve control module, a main injection table control module and an auxiliary injection table control module which are respectively in communication connection with the control terminal, wherein the needle valve control module is used for controlling the opening and closing of a mold needle valve, and the main injection table control module is used for controlling the opening and closing of a main injection table glue inlet; the injection quantity detection module is used for detecting the injection quantity of the glue inlet of the main injection platform and uploading injection quantity data to the control terminal, and the control terminal sends an instruction to the auxiliary injection platform control module according to the injection quantity data so that the auxiliary injection platform control module controls the opening or the opening size of the glue inlet of the auxiliary injection platform;
The needle valve control module and the main injection table control module respectively control the synchronous opening of the needle valve of the mould and the glue inlet of the main injection table and feed back an opening signal to the control terminal, and the control terminal receives the opening signal and instructs the auxiliary injection table control module to control the opening of the glue inlet of the auxiliary injection table;
The needle valve control module and the main injection platform control module respectively control the synchronous opening of the needle valve of the mould and the glue inlet of the main injection platform and feed back an opening signal to the control terminal; the control terminal is internally preset with synchronous starting node parameters, and the control terminal sends an instruction to the auxiliary injection platform control module according to the starting signal and the synchronous starting node parameters so that the auxiliary injection platform control module controls the auxiliary injection platform glue inlet to be started;
The control terminal is also internally preset with synchronous stop node parameters, and the control terminal sends an instruction to the auxiliary injection platform control module according to the synchronous stop node parameters so that the auxiliary injection platform control module controls the auxiliary injection platform glue inlet to be closed;
The needle valve control module and the main injection platform control module respectively control the synchronous opening of the needle valve of the mould and the glue inlet of the main injection platform and feed back an opening signal to the control terminal; the control terminal is internally preset with a sequence starting node parameter, and the control terminal sends an instruction to the auxiliary injection platform control module according to the starting signal and the sequence starting node parameter so that the auxiliary injection platform control module controls the auxiliary injection platform glue inlet to be started; the control terminal synchronously sends an instruction to the main injection platform control module to enable the main injection platform control module to control the main injection platform glue inlet to be closed;
The control terminal is also preset with a sequence stop node parameter, and the control terminal sends an instruction to the auxiliary injection table control module according to the sequence stop node parameter so that the auxiliary injection table control module controls the auxiliary injection table glue inlet to be closed; and the control terminal synchronously sends an instruction to the main injection platform control module, so that the main injection platform control module controls the main injection platform glue inlet to be opened.
2. The injection control system of the double-color-cleaning injection molding machine according to claim 1, wherein a gradual change starting node parameter and a gradual change injection quantity adjusting parameter are preset in the control terminal, and the control terminal sends an instruction to the auxiliary injection table control module according to the gradual change starting node parameter and the gradual change injection quantity adjusting parameter, so that the auxiliary injection table control module controls the opening of the auxiliary injection table glue inlet to be gradually reduced or enlarged.
3. The injection control system of the double-color-clearing injection molding machine according to claim 1, wherein a glue port allowance detection parameter for detecting glue port allowance of the auxiliary injection table and the main injection table is preset in the control terminal, and the control terminal respectively sends instructions to the main injection table control module and the auxiliary injection table control module according to the glue port allowance detection parameter, so that the main injection table control module and the auxiliary injection table control module respectively control the glue port of the main injection table and the glue port of the auxiliary injection table to be closed.
4. The injection control system of claim 3, wherein the main injection stage glue inlet and the auxiliary injection stage glue inlet are in communication connection with a glue leakage detector.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN102294804A (en) * | 2011-08-29 | 2011-12-28 | 宁波双马机械工业有限公司 | Mold locking mechanism of plastic injection molding machine |
| CN216941724U (en) * | 2021-10-18 | 2022-07-12 | 海天塑机集团有限公司 | Needle valve control system based on injection molding machine |
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| US7651644B2 (en) * | 2006-05-31 | 2010-01-26 | Graham Packaging Company, Lp | Controlling delivery of polymer material in a sequential injection molding process |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102294804A (en) * | 2011-08-29 | 2011-12-28 | 宁波双马机械工业有限公司 | Mold locking mechanism of plastic injection molding machine |
| CN216941724U (en) * | 2021-10-18 | 2022-07-12 | 海天塑机集团有限公司 | Needle valve control system based on injection molding machine |
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